SP500

The S&P 500 had its largest ever put volume day on Friday (SP500:)

Oct 19, 2026, 2:40 PM ETS&P 500 Index (SP500), , , , , , , , , , , , By: Monica L. Correa, SA News Editor
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The S&P 500 (SP500) recorded its largest-ever single-day put options trading volume by dollar notional value last Friday.

The index reached an estimated $3.3T-$3.4T, according to market data.

The surge represented roughly a 330% increase above the 2024 average, with approximately 4.1M

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